CVE-2026-58167

Nightingale (n9e) before 9.0.0-beta.2 exposes full datasource configurations, including plaintext database passwords, HTTP bearer tokens, HTTP basic-auth passwords, and mTLS client keys, to any authenticated low-privilege (Standard role) user through POST /api/n9e/datasource/list. The route is registered without an admin authorization gate, unlike the sibling datasource mutation routes, and the open-source DatasourceFilter does not redact secret fields, so the secret-bearing settings, http, and auth objects are serialized in the response. The disclosed credentials enable access to the connected downstream systems.

• github.comhttps://github.com/ccfos/nightingale/commit/762819fbaa2350b73bce45bfaf6f8cf74b4abef8
• github.comhttps://github.com/ccfos/nightingale/issues/3173
• github.comhttps://github.com/ccfos/nightingale/pull/3175
• github.comhttps://github.com/ccfos/nightingale/releases/tag/v9.0.0-beta.2
• www.vulncheck.comhttps://www.vulncheck.com/advisories/nightingale-beta-2-datasource-credential-disclosure-to-low-privilege-users